Base | Representation |
---|---|
bin | 10010111100011… |
… | …101011000100000 |
3 | 211011001212222101 |
4 | 102330131120200 |
5 | 1122331321010 |
6 | 51312220144 |
7 | 10606404652 |
oct | 2274353040 |
9 | 734055871 |
10 | 317838880 |
11 | 153459067 |
12 | 8a53a654 |
13 | 50b05658 |
14 | 302d86d2 |
15 | 1cd8473a |
hex | 12f1d620 |
317838880 has 96 divisors (see below), whose sum is σ = 786515184. Its totient is φ = 121245696.
The previous prime is 317838823. The next prime is 317838931. The reversal of 317838880 is 88838713.
It can be written as a sum of positive squares in 8 ways, for example, as 127509264 + 190329616 = 11292^2 + 13796^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 317838880.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313254 + ... + 314266.
Almost surely, 2317838880 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 317838880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393257592).
317838880 is an abundant number, since it is smaller than the sum of its proper divisors (468676304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
317838880 is a wasteful number, since it uses less digits than its factorization.
317838880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1118 (or 1110 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 46.
The square root of 317838880 is about 17828.0363472818. The cubic root of 317838880 is about 682.4471229725.
The spelling of 317838880 in words is "three hundred seventeen million, eight hundred thirty-eight thousand, eight hundred eighty".
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